1/*
2   Unix SMB/CIFS implementation.
3
4   Command backend for wbinfo --group-info
5
6   Copyright (C) Kai Blin 2008
7
8   This program is free software; you can redistribute it and/or modify
9   it under the terms of the GNU General Public License as published by
10   the Free Software Foundation; either version 3 of the License, or
11   (at your option) any later version.
12
13   This program is distributed in the hope that it will be useful,
14   but WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16   GNU General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with this program.  If not, see <http://www.gnu.org/licenses/>.
20*/
21
22#include "includes.h"
23#include "libcli/composite/composite.h"
24#include "winbind/wb_server.h"
25#include "winbind/wb_async_helpers.h"
26#include "param/param.h"
27#include "winbind/wb_helper.h"
28#include "smbd/service_task.h"
29#include "libnet/libnet_proto.h"
30#include "libcli/security/proto.h"
31
32struct cmd_getgrnam_state {
33	struct composite_context *ctx;
34	struct wbsrv_service *service;
35	char *name;
36	char *workgroup_name;
37	struct dom_sid *group_sid;
38
39	struct winbindd_gr *result;
40};
41
42static void cmd_getgrnam_recv_domain(struct composite_context *ctx);
43static void cmd_getgrnam_recv_group_info(struct composite_context *ctx);
44static void cmd_getgrnam_recv_gid(struct composite_context *ctx);
45
46struct composite_context *wb_cmd_getgrnam_send(TALLOC_CTX *mem_ctx,
47						 struct wbsrv_service *service,
48						 const char *name)
49{
50	struct composite_context *result, *ctx;
51	struct cmd_getgrnam_state *state;
52
53	DEBUG(5, ("wb_cmd_getgrnam_send called\n"));
54
55	result = composite_create(mem_ctx, service->task->event_ctx);
56	if (!result) return NULL;
57
58	state = talloc(result, struct cmd_getgrnam_state);
59	if (composite_nomem(state, result)) return result;
60	state->ctx = result;
61	result->private_data = state;
62	state->service = service;
63	state->name = talloc_strdup(state, name);
64	if(composite_nomem(state->name, result)) return result;
65
66	ctx = wb_name2domain_send(state, service, name);
67	if (composite_nomem(ctx, result)) return result;
68
69	composite_continue(result, ctx, cmd_getgrnam_recv_domain, state);
70	return result;
71}
72
73static void cmd_getgrnam_recv_domain(struct composite_context *ctx)
74{
75	struct cmd_getgrnam_state *state = talloc_get_type(
76			ctx->async.private_data, struct cmd_getgrnam_state);
77	struct wbsrv_domain *domain;
78	struct libnet_GroupInfo *group_info;
79	char *group_dom, *group_name;
80	bool ok;
81
82	state->ctx->status = wb_name2domain_recv(ctx, &domain);
83	if(!composite_is_ok(state->ctx)) return;
84
85	group_info = talloc(state, struct libnet_GroupInfo);
86	if (composite_nomem(group_info, state->ctx)) return;
87
88	ok = wb_samba3_split_username(state, state->service->task->lp_ctx,
89				      state->name, &group_dom, &group_name);
90	if(!ok){
91		composite_error(state->ctx, NT_STATUS_OBJECT_NAME_INVALID);
92		return;
93	}
94
95	group_info->in.level = GROUP_INFO_BY_NAME;
96	group_info->in.data.group_name = group_name;
97	group_info->in.domain_name = group_dom;
98	state->workgroup_name = talloc_strdup(state, group_dom);
99	if(composite_nomem(state->workgroup_name, state->ctx)) return;
100
101	ctx = libnet_GroupInfo_send(domain->libnet_ctx, state, group_info,NULL);
102
103	composite_continue(state->ctx, ctx, cmd_getgrnam_recv_group_info,state);
104}
105
106static void cmd_getgrnam_recv_group_info(struct composite_context *ctx)
107{
108	struct cmd_getgrnam_state *state = talloc_get_type(
109			ctx->async.private_data, struct cmd_getgrnam_state);
110	struct libnet_GroupInfo *group_info;
111	struct winbindd_gr *gr;
112
113	DEBUG(5, ("cmd_getgrnam_recv_group_info called\n"));
114
115	group_info = talloc(state, struct libnet_GroupInfo);
116	if(composite_nomem(group_info, state->ctx)) return;
117
118	gr = talloc(state, struct winbindd_gr);
119	if(composite_nomem(gr, state->ctx)) return;
120
121	state->ctx->status = libnet_GroupInfo_recv(ctx, state, group_info);
122	if(!composite_is_ok(state->ctx)) return;
123
124	WBSRV_SAMBA3_SET_STRING(gr->gr_name, group_info->out.group_name);
125	WBSRV_SAMBA3_SET_STRING(gr->gr_passwd, "*");
126	gr->num_gr_mem = group_info->out.num_members;
127	gr->gr_mem_ofs = 0;
128
129	state->result = gr;
130
131	ctx = wb_sid2gid_send(state, state->service, group_info->out.group_sid);
132	composite_continue(state->ctx, ctx, cmd_getgrnam_recv_gid, state);
133}
134
135static void cmd_getgrnam_recv_gid(struct composite_context *ctx)
136{
137	struct cmd_getgrnam_state *state = talloc_get_type(
138			ctx->async.private_data, struct cmd_getgrnam_state);
139	gid_t gid;
140
141	DEBUG(5, ("cmd_getgrnam_recv_gid called\n"));
142
143	state->ctx->status = wb_sid2gid_recv(ctx, &gid);
144	if(!composite_is_ok(state->ctx)) return;
145
146	state->result->gr_gid = gid;
147
148	composite_done(state->ctx);
149}
150
151NTSTATUS wb_cmd_getgrnam_recv(struct composite_context *ctx,
152		TALLOC_CTX *mem_ctx, struct winbindd_gr **gr)
153{
154	NTSTATUS status = composite_wait(ctx);
155
156	DEBUG(5, ("wb_cmd_getgrnam_recv called\n"));
157
158	if (NT_STATUS_IS_OK(status)) {
159		struct cmd_getgrnam_state *state =
160			talloc_get_type(ctx->private_data,
161					struct cmd_getgrnam_state);
162		*gr = talloc_steal(mem_ctx, state->result);
163	}
164	talloc_free(ctx);
165	return status;
166
167}
168
169